Image Source: WABetaInfo
Currently, exchanging contact information for WhatsApp involves revealing your phone number, which can be concerning for those that prefer certain anonymity, be it for security or personal reasons. While users will probably still need a number to set up an account, having the option of a username allows them to be more selective about who sees it.
Additionally, this feature could be useful to those that want a username that is much easier for friends and family to remember, rather than a series of numbers. Unfortunately, WhatsApp has yet to provide an official timeline for when usernames will be available to all users, but we hope this becomes a focus for the app’s developers this year.